Mold for curing and forming blow-out patches



APPLICATION FILED JULY 28.1920.

Patented Mar. 22, 1921.

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UNITED STATE PATENT OFFICE. 4

CARL MAGNUS'ANDERSON, or na'rnvm, ILLINOIS.

mom) FOR erm ne AND romaine BLOW-OUT Pair-ones.

To all whom it may concern:

Be it known, that I, CARL M. ANnnnson, a citizen of the United States, residing at Batavia, in the county 01' Kane and State of Illinois, have invented a new and useful Mold for Curing and llorming Blow-ut Patches, of which the following is a specification.

It is the object of this invention to provide a simple but eflicient means whereby blowout patches may be cured and formed.

Within the scope of what is claimed, a mechanic may make changes without departing from the spirit. of the invention.

In the drawing=*:--

Figure 1 shows in side elevation, a device constructed in accordance with the invention, parts being broken away; and Fig. 2 is an end elevation wherein parts are broken away.

The device forming the subject matter of this application preferably is made of metal and includes a hollow box-like base or main member 1 provided on its bottom with ribs 2 adapted to cooperate with a supporting frame (not shown). A steam supply pipe 3 communicates with the interior of the main member 1 and maybe mounted in the bottom of the member 1, or in some other part thereof. The top of the main member 1 is curved both longitudinally and transversely to correspond. to the ordinary curvatures of a vehicle tire.

The numeral 5 denotes an auxiliary member which may be hollow, if desired. The auxiliary member, on its lower and side surfaces, is curved longitudinally and trans versely to fit in the upper portion of the main member 1. l

The numeral 6 denotes a yoke provided in its intermediate portion with bosses 7 connecting a reinforcing web 8, the web being connected with the end portions of the yoke. One end of the yoke is united by a pivot element 9 with one end of the main member 1.. The other end of the yoke 6 is connected by a pivot member 10 with the other end of the main member 1. The pivot member may be constructed in any desired way, but it r exercises a double function, in that it serves as a pivotal mounting'for one end of the yoke 6 and constitutes, also an outlet valve for the hollow box-like member 1. With this end in view, the pivot member 10 may be supplied with a longitudinal passage 11 communicating with the interior of the Specification of Letters Patent. Patented 1921 Application filed July as, 1920.

Serial No. 399,550.

main member 1, and with a side port 12. A valve 14 is threaded into the outer end of the pivot member 10 and may be seated to prevent an outflow through the passage 11 and the port 12. Screws 15 are threaded into the intermediate portion of the yoke 6, and through the bosses 7, the screws being adapted to exert a pressure on the auxiliary member 5.

The numeral 16 denotes a U-shaped flap grip, including a resilient arch 17 carrying plates 18 at its ends.

In practical operation, the material which it to be formed into a blowout patch is seated in the top of the box-like member 1. The auxiliary member 5 is inserted into the concavity of the patch and the screws 15 are advanced to press the auxiliary member 5 .on the patch. The longitudinal edges of the patch 19, which constitutes flaps 20, are folded downwardly on the outer sides of the box-like main member 1. The flap grip 16 is then placed astride of the yoke 6, the plates 18 pressing the flaps 20 of the patch 19 against the side walls of the main memher 1, since the arched portion 17 of the flap grip is somewhat resilient.

By moving the valve 1 1 to an open position, air may be permitted to escape from the interior of the main member 1, steam being supplied through the pipe 3.

Having thus described the invention, what is claimed is 1. In a device of the class described a main member; an auxiliary member coo'perating with the main member; and a flap grip located between the ends of the auxiliary member and spanning the auxiliary member transversely, the grip comprising a resilient arch and parts cooperating with the sides of the main member, said parts being held in cooperatingrelation with re spect to the sides of the main member by the resiliency of the arch.

2. In a device of the class described, a main member; an auxiliary member cooperating therewith; a yoke pivoted to the main member; a compression element carried by the yoke and coacting with the auxiliary member; and a flap grip spanning the yoke and the auxiliary member and comprising parts cooperating with the sides of the main member.

3. In a device of the class described, a hollow main member; an auxiliary member cooperating with the main member; a yoke;

compression means carried by the yoke and engaging the auxiliary member; and pivot elements uniting the yoke with the main member, one pivot element having a passage communicating with the interior of the main member; and a valve mounted in the pivot element and controlling the passage.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

CARL MAGNUS ANDERSON.

WVitneses:

C. D. NEWLIN, B. B. PADDOCK. 

